The fight over the economics of protection has been going on, with Harry Clarke at Kalimna saying
The argument that Nicholas Gruen has propounded, and which John Quiggin seems to have supported, that low levels of tariff protection are justified by the existence of market power in export markets, is just wrong.
I don’t think Harry’s argument actually proves his claims – he just shows that the simple version of this argument is too simple, which is true of all simple arguments, including simple arguments for free trade.
My view, for what it’s worth, is that any terms of trade benefit from protecting the industry is likely to be negligibly small and that the standard counterarguments about retaliation make it a bad idea to try to impose optimal tariffs to extract such benefits. But the allocative efficiency benefits of reducing small tariffs.
But if neither of these effects is significant what are we arguing about? A couple of things.
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